Difference between revisions of "Winter waxing"

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They are typically seen in winter as either suspended flakes in the biodiesel, or white/yellow cream at the bottom of drums.
 
They are typically seen in winter as either suspended flakes in the biodiesel, or white/yellow cream at the bottom of drums.
  
The [[Whole Batch Demeth]] processing method seems to produce more HMPEs than traditional methods.  There is some speculation that this is because the yeild is higher using this technique, and that the level of HMPEs may be reduced by doing a cold [[7% water Prewash]]
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The [[Whole Batch Demeth]] processing method may produce more HMPEs than traditional methods, though this is unconfirmed.  There is some speculation that this may be because the yeild is higher using this technique, and that the level of HMPEs could be reduced by doing a cold [[Water Prewash]]
  
 
<gallery caption="High Melt Point Esters" widths="200px" heights="200px" perrow="3">
 
<gallery caption="High Melt Point Esters" widths="200px" heights="200px" perrow="3">
 
File:Hmpe1.jpg|HMPEs at bottom of barrel
 
File:Hmpe1.jpg|HMPEs at bottom of barrel
File:Hmpe2.jpg|A closer look at the ball formation, typically seen after [[Whole Batch Demeth]]
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File:Hmpe2.jpg|A closer look at the ball formation
 
File:Hmpe_balls.jpg|HMPE balls on the side of a barrel
 
File:Hmpe_balls.jpg|HMPE balls on the side of a barrel
 
File:Hmpe_settled.jpg|HMPEs after bio is filtered off
 
File:Hmpe_settled.jpg|HMPEs after bio is filtered off

Revision as of 22:56, 23 November 2010

High Melt Point Esters are Fatty Acid Methyl Esters with a melt point above ambient.

They are typically seen in winter as either suspended flakes in the biodiesel, or white/yellow cream at the bottom of drums.

The Whole Batch Demeth processing method may produce more HMPEs than traditional methods, though this is unconfirmed. There is some speculation that this may be because the yeild is higher using this technique, and that the level of HMPEs could be reduced by doing a cold Water Prewash